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Well, what does "correct" mean here? Colors are a construct of the human mind, whichever way you put it. Now, you could devise some tests where you look at a "white" piece of paper (you conduct a survey of 100 people to establish whether it is pure white or tinted) and you look at it through each eye, and now if one eye sees it as pure white and the other as reddish or blueish, you know that the eye that sees it as pure white is "correct"; possibly one eye sees it as reddish and the other as blueish, and then neither eye is "correct". Of course, this defines "correct" as "in agreement with the eye sight of most other people". You could also chose to dig deeper, and have many complex tests done to determine if there are differences in the structure of the retinas of the two eyes that could explain the difference (e.g. perhaps one retina has some malformations that probably explain the difference), and then you can decide that the eye that doesn't have the malformation, if any, is "correct". That eye could still be more skewed in your perception according to the first test though, since the brain may have already adjusted. Alternatively, you could study the neural architecture that is responsible for color perception and suss out the differences between the two images, find out what is the difference between them, and decide which is correct based on that (are they different output images for the same input, and is one receiving any other input that should not be related? are they receiving different inputs? how does your neural architecture differ from that of 100 other people? etc.) Of course, we entirely lack the ability to do the third test, and mostly lack this ability for the second test as well, so from a purely practical point of view, you would be stuck with the first test to determine this. The exact same question could be posed of a color-reporting computer system, by the way. Say you have two cameras and an image analyzer that can print out the color of the central pixel in the images from both cameras (in RGB). Pointing the two cameras at the same object, you get a print out that says `LEFT (R250,G255,B255); RIGHT (R255,G255,B250)`. Which of the two is correct? |